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Solar light efficient photocatalytic activity degradation of emergent contaminants by coated TiO2 nanoparticles
(Royal Society of Chemistry, 2018-08-09)
The photocatalytic degradation of different emergent contaminants in aqueous solutions has been studied by using oligomer-coated TiO2 nanoparticles under solar light irradiation. The oligomer was synthesized using methacrylic ...
Exploiting electron storage in TiO2 nanoparticles for dark reduction of As(v) by accumulated electrons
(Royal Society Of Chemistry, 2013-05)
UV irradiation of an ethanolic sol of TiO2 nanoparticles produces a trapped Ti(III) centre and a noticeable Burstein shift. Direct evidence that the accumulated charges can drive the otherwise forbidden reduction of ...
TiO2 mesoporous thin film architecture as a tool to control Au nanoparticles growth and sensing capabilities
(Royal Society of Chemistry, 2019-04)
In this paper, a systematic study regarding the effect of the mesoporous structure over Au nanoparticles (NPs) growth inside and through the pores of mesoporous TiO2 thin films (MTTFs) is presented, and the effect of such ...
Photocatalytic hydrogen production by Au-MxOy (M=Ag, Cu, Ni) catalysts supported on TiO2
(Elsevier Science, 2014-01)
Au-MxOy (M_Ag, Cu, Ni) nanoparticles supported on TiO2?P25 were prepared by the deposition?precipitation method and were evaluated for the fotocatalytic water splitting reaction for hydrogen production, using a mixture of ...
Absorption mechanism of dopamine/DOPAC-modified TiO2 nanoparticles by time-dependent density functional theory calculations
(Elsevier Ltd, 2021-03)
Donor-modified TiO2 nanoparticles are interesting hybrid systems shifting the absorption edge of this semiconductor from the ultra-violet to the visible or infrared light spectrum, which is a benefit for several applications ...
The role of nanoparticulate agglomerates in TiO2 photocatalysis: degradation of oxalic acid
(Springer, 2016-07)
The simultaneous bimodal study of the photocatalytic oxalic acid degradation by aqueous TiO2 suspensions revealed that particular systems possess the capacity to protect a certain amount of oxalic acid from oxidation, thus ...
Interparticle effects in the cotransport of viruses and engineered nanoparticles in saturated porous media
(Elsevier, 2021-10)
The effects of P25 TiO2 nanoparticles on the transport in saturated porous media of the bacteriophage PP7 was investigated. Two levels of ionic strength were considered, given by monovalent and divalent cations, Na+ and ...
Neurotoxicity mediated by oxidative stress caused by titanium dioxide nanoparticles in human neuroblastoma (SH-SY5Y) cells
(Elsevier Gmbh, 2020-01)
Background: Titanium is widely used in biomedicine. Due to biotribocorrosion, titanium dioxide (TiO2) nanoparticles (NPs) can be released from the titanium implant surface, enter the systemic circulation, and migrate to ...
1D TiO2 nanostructures prepared from seeds presenting tailored tio2 crystalline phases and their photocatalytic activity for Escherichia coli in water
(Hindawi Publishing Corporation, 2018-07)
TiO2 nanotubes were synthesized by alkaline hydrothermal treatment of TiO2 nanoparticles with a controlled proportion of anatase and rutile. Tailoring of TiO2 phases was achieved by adjusting the pH and type of acid used ...
A new synthesis pathway for colloidal silica spheres coated with crystalline titanium oxide and its comparative cyto- and genotoxic study with titanium oxide nanoparticles in rat osteosarcoma (UMR106) cells
(Elsevier Science, 2013-03)
Spherical particles with an amorphous core of silica and a crystalline shell of titanium oxide (SiO2@TiO2) formed in a three-step procedure, being the last step a mild chemical treatment. SiO2@TiO2 had a shell with pores ...